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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 942 · 40 questions
TalentJR

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

NameDateTime takenScore ___ / 40
  1. 1.16 × 8 =
  2. 2.12 × 13 =
  3. 3.20% of 330 =
  4. 4.28 × 8 =
  5. 5.61 + 19 + 52 + 32 =
  6. 6.47 × 8 =
  7. 7.67 × 8 =
  8. 8.Best estimate of 21 × 68? (a) 2800 (b) 140 (c) 1400 (d) 14000
  9. 9.39² =
  10. 10.₹22.55 + ₹35.70 =
  11. 11.79² =
  12. 12.6 × 15 =
  13. 13.₹61.25 + ₹30.15 =
  14. 14.Best estimate of 59 × 78? (a) 48000 (b) 4800 (c) 480 (d) 9600
  15. 15.71² =
  16. 16.365 − 47 =
  17. 17.525 ÷ 5 =
  18. 18.49 × 8 =
  19. 19.₹19.45 − ₹16.30 =
  20. 20.₹56.65 − ₹40.05 =
  21. 21.₹39.20 + ₹3.60 =
  22. 22.3 + 3 + 6 + 4 =
  23. 23.13 × 13 =
  24. 24.16 × 18 =
  25. 25.21 × 15 =
  26. 26.78 + 47 + 47 + 57 =
  27. 27.46 × 50 =
  28. 28.9 + 1 + 9 + 7 + 9 =
  29. 29.2 + 5 + 8 + 3 =
  30. 30.₹91.30 + ₹12.70 =
  31. 31.17 × 15 =
  32. 32.33 × 5 =
  33. 33.48 × 15 =
  34. 34.428 + 37 =
  35. 35.9 + 3 + 9 + 6 + 1 =
  36. 36.Best estimate of 42 × 78? (a) 3200 (b) 32000 (c) 6400 (d) 320
  37. 37.4 + 7 + 6 + 3 =
  38. 38.59 × 8 =
  39. 39.60 + 69 =
  40. 40.381 − 88 =

Answer key

  1. 128
  2. 156
  3. 66
  4. 224
  5. 164
  6. 376
  7. 536
  8. 1400
  9. 1521
  10. 58.25
  11. 6241
  12. 90
  13. 91.4
  14. 4800
  15. 5041
  16. 318
  17. 105
  18. 392
  19. 3.15
  20. 16.6
  21. 42.8
  22. 16
  23. 169
  24. 288
  25. 315
  26. 229
  27. 2300
  28. 35
  29. 18
  30. 104
  31. 255
  32. 165
  33. 720
  34. 465
  35. 28
  36. 3200
  37. 20
  38. 472
  39. 129
  40. 293

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